diff --git a/addons/l10n_de/models/datev.py b/addons/l10n_de/models/datev.py
index fad71b034de..0dee75c74c4 100644
--- a/addons/l10n_de/models/datev.py
+++ b/addons/l10n_de/models/datev.py
@@ -5,7 +5,7 @@ from odoo.tools.translate import _
 class AccountTaxTemplate(models.Model):
     _inherit = 'account.tax.template'
 
-    l10n_de_datev_code = fields.Char(size=2)
+    l10n_de_datev_code = fields.Char(size=4)
 
     def _get_tax_vals(self, company, tax_template_to_tax):
         vals = super(AccountTaxTemplate, self)._get_tax_vals(company, tax_template_to_tax)
@@ -15,7 +15,7 @@ class AccountTaxTemplate(models.Model):
 class AccountTax(models.Model):
     _inherit = "account.tax"
 
-    l10n_de_datev_code = fields.Char(size=2, help="2 digits code use by Datev")
+    l10n_de_datev_code = fields.Char(size=4, help="4 digits code use by Datev")
 
 
 class AccountMove(models.Model):
diff --git a/addons/l10n_de_skr03/data/account_tax_fiscal_position_data.xml b/addons/l10n_de_skr03/data/account_tax_fiscal_position_data.xml
index 00967e31b3b..40d2a19b6b3 100644
--- a/addons/l10n_de_skr03/data/account_tax_fiscal_position_data.xml
+++ b/addons/l10n_de_skr03/data/account_tax_fiscal_position_data.xml
@@ -487,7 +487,7 @@
         <field name="description">19% USt</field>
         <field name="amount_type">percent</field>
         <field name="amount">19</field>
-        <field name="l10n_de_datev_code">13</field>
+        <field name="l10n_de_datev_code">3</field>
         <field name="type_tax_use">sale</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
@@ -524,7 +524,7 @@
         <field name="description">7% USt</field>
         <field name="amount_type">percent</field>
         <field name="amount">7</field>
-        <field name="l10n_de_datev_code">12</field>
+        <field name="l10n_de_datev_code">2</field>
         <field name="type_tax_use">sale</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
@@ -787,7 +787,7 @@
         <field name="description">19% VSt</field>
         <field name="amount_type">percent</field>
         <field name="amount">19</field>
-        <field name="l10n_de_datev_code">19</field>
+        <field name="l10n_de_datev_code">9</field>
         <field name="type_tax_use">purchase</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
@@ -818,7 +818,7 @@
         <field name="description">7% VSt</field>
         <field name="amount_type">percent</field>
         <field name="amount">7</field>
-        <field name="l10n_de_datev_code">18</field>
+        <field name="l10n_de_datev_code">8</field>
         <field name="type_tax_use">purchase</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
diff --git a/addons/l10n_de_skr04/data/account_tax_fiscal_position_data.xml b/addons/l10n_de_skr04/data/account_tax_fiscal_position_data.xml
index b737fdc03b1..fb5e32c45a5 100644
--- a/addons/l10n_de_skr04/data/account_tax_fiscal_position_data.xml
+++ b/addons/l10n_de_skr04/data/account_tax_fiscal_position_data.xml
@@ -487,7 +487,7 @@
         <field name="description">19% USt</field>
         <field name="amount_type">percent</field>
         <field name="amount">19</field>
-        <field name="l10n_de_datev_code">13</field>
+        <field name="l10n_de_datev_code">3</field>
         <field name="type_tax_use">sale</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
@@ -524,7 +524,7 @@
         <field name="description">7% USt</field>
         <field name="amount_type">percent</field>
         <field name="amount">7</field>
-        <field name="l10n_de_datev_code">12</field>
+        <field name="l10n_de_datev_code">2</field>
         <field name="type_tax_use">sale</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
@@ -787,7 +787,7 @@
         <field name="description">19% VSt</field>
         <field name="amount_type">percent</field>
         <field name="amount">19</field>
-        <field name="l10n_de_datev_code">19</field>
+        <field name="l10n_de_datev_code">9</field>
         <field name="type_tax_use">purchase</field>
         <field name="price_include">False</field>
         <field name="active">True</field>
@@ -818,7 +818,7 @@
         <field name="description">7% VSt</field>
         <field name="amount_type">percent</field>
         <field name="amount">7</field>
-        <field name="l10n_de_datev_code">18</field>
+        <field name="l10n_de_datev_code">8</field>
         <field name="type_tax_use">purchase</field>
         <field name="price_include">False</field>
         <field name="active">True</field>